Every public data breach

44 disclosed this week · 26,355 on record

Mt. Graham Regional Medical Center

Disclosed Sep 29, 202335,688 affectedConfirmed

Official notice

Mount Graham Regional Medical Center, the covered entity (CE), reported that it experienced a ransomware attack that compromised the protected health information (PHI) of 35,688 individuals. The PHI involved included names, addresses, Social Security and drivers’ license numbers, birthdates, financial information, and treatment information. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect sensitive data.

What is known

People affected35,688 (as reported to HHS)
DisclosedSep 29, 2023
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

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